(*
  Copyright (c) 2009 Barry Schwartz

  Permission is hereby granted, free of charge, to any person
  obtaining a copy of this software and associated documentation
  files (the "Software"), to deal in the Software without
  restriction, including without limitation the rights to use,
  copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following
  conditions:

  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  OTHER DEALINGS IN THE SOFTWARE.
*)

open UTypes
open ParseState

type arg_specifier = | Arg | Opt of uc_list | Bool

val parse_arg_template : Location.location -> uc_list -> arg_specifier list
val substitute : uc_list list -> uc_list -> uc_list
val expand : parse_state -> uc_list
val noexpand : parse_state -> uc_list -> uc_list
val expand_string : parse_state -> uc_list -> uc_list
val execute_macro : arg_specifier list -> uc_list -> parse_state -> unit
val expand_macro :
  arg_specifier list -> uc_list -> parse_state -> uc_list -> uc_list
val execute_command : parse_state -> uc_list -> unit
val begin_env : parse_state -> uc_list -> unit
val end_env : parse_state -> uc_list -> unit
val execute_begin_environment :
  uc_list -> arg_specifier list -> uc_list -> parse_state -> unit
val expand_begin_environment :
  uc_list ->
    arg_specifier list -> uc_list -> parse_state -> uc_list -> uc_list
val execute_end_environment : uc_list -> parse_state -> unit
val expand_end_environment : uc_list -> parse_state -> uc_list -> uc_list
